Genetic structure of four Kazdaǧi fir (Abies equitrojani Ascherson et Sinten) populations in Kazdaǧi, Turkey as assessed by adaptive seedling traits

Date

2005-11-22

Author

Çiçek, F. Filiz
Kaya, Zeki
Çengel, Burcu N.
Velioǧlu, E.

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To investigate the magnitude and pattern of genetic variation in adaptive seedling traits, seedlings of 126 families from four natural populations of Kazdagi-fir (Abies equitrajani) from Kazdagi in Turkey were raised in nursery environments and evaluated for 12 adaptive traits (including growth and phenological traits). Significant population and family within population differences were observed for the most studied traits. Although the components of total variation attributable to the families within populations were greater than that of populations, variance components due to populations (range: 0-5.7 %) and families within populations (range: 0-20.7 %) were low. Estimated family heritabilities were generally low and did not exceed 0.51 (for SURV), but magnitude of family heritabilities for growth traits suggests (range: 0.17-0.20) that considerable genetic improvement could be achieved if early selection is practiced. Genetic and phenotypic correlations between adaptive traits were in the same direction in sign, but genetic correlations were higher than phenotypic correlations. The families with higher cotyledon number had more growth, in turn, larger seedling size after the first two growing seasons indicating maternal effects. The families with later budset and bud burst dates had less growth in the second growing season. Two major Gene Management Zanes (GMZ) for Kazdagi fir were suggested for in situ conservation program; Giirgendag population as a large-core reserve and Can population as the second one being isolated, genetically less similar to others and having high genetic variation in adaptive seedling traits.

Subject Keywords

Abies equitrojani, Gene Management Zone (GMZ), Genetic correlation, Genetic variation, Heritability, Kazdaǧi, Phenotypic correlation

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=27744432796&origin=inward
https://hdl.handle.net/11511/79957

Journal

Forest Genetics

Collections

Department of Biology, Article

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Citation Formats

F. F. Çiçek, Z. Kaya, B. N. Çengel, and E. Velioǧlu, “Genetic structure of four Kazdaǧi fir (Abies equitrojani Ascherson et Sinten) populations in Kazdaǧi, Turkey as assessed by adaptive seedling traits,” Forest Genetics, pp. 45–56, 2005, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=27744432796&origin=inward.